Cummins truck rebuilds run higher than gas-truck rebuilds because the transmissions are bigger, heavier, and built for tow duty. Real 2026 pricing below for the two main Cummins-era trannies.
The 48RE is the four-speed automatic on early common-rail Cummins. Master rebuild kit $350-600, valve body rebuild $300-500, torque converter $300-450, governor solenoid $90-170, labor 9-12 hours. Total: $2,400 to $3,800.
Six-speed for late common-rail trucks. More complex valve body, more solenoids, plus the heavy-duty Cummins service load. Master kit $500-800, solenoid pack $400-700, valve body $400-600, converter $400-600, labor 11-14 hours. Total: $3,200 to $5,000.
These transmissions weigh 400-500 lbs each. R&R takes longer. Heavy-duty parts (Sonnax HD, BD HD, Suncoast) cost more than standard kits but are required if the truck tows above 12,000 lbs. Skipping HD parts on a tow rig means a comeback within 25,000 miles.
A 68RFE rebuild that the dealer quotes at $7,000 can be done at an independent shop for $3,800-4,500 with the same Sonnax HD parts. The dealer markup on parts is 60-100% over wholesale.
If a shop quotes you a 68RFE rebuild under $3,000, they are skipping the solenoid pack or using the cheapest reman converter. Either choice creates a 12,000-mile comeback.
Direct-from-the-pro pricing. Free shipping over $75. Same-day handling Monday-Friday. 30-day returns.
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